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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers






2. 19-23 (21) days






3. Help to signal hormone levels which we need both in the brain right next to each other.






4. What about the sperm for a bull which has been castrated but still has testicles?






5. Urinary calculi.






6. 147 days






7. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat






8. Animals which have only one estrous cycle (ex: dog - fox)






9. Important 'landmark' during palpation






10. 10-37 (21) days






11. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.






12. Way to know everything is alright with the breeding male






13. Days which have decreasing daylight hours

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14. 1-3 days






15. Duct through penis that carries sperm and urine






16. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat






17. (male) pushes the testes upward toward the body for warmth or protection






18. Birthing process (termination of gestation)






19. What makes the milk flow through the mammary glands?






20. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






21. 30 hours after estrus begins






22. 30-38 hours after estrus cycle begins






23. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING






24. Male on one pin and female on other side






25. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






26. Not under a timeline - cow can not be sold as steak






27. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






28. ~305 days (altough often longer due to breeding difficulties)






29. (LH) stimulates the Leydig cells to produce testosterone






30. Luteolysis happens because of the ____________ hormone






31. Look for infection - split - and rupture of the penis






32. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






33. 10-37 (21) days






34. Important 'landmark' during palpation






35. Milk is 15% ________ and 85% __________.






36. Animals which have only one estrous cycle (ex: dog - fox)






37. ~60 days before calving






38. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






39. Check feet and legs - look for masculine traits in build such as crest and muscling






40. 2 month growth cycle. stored in the epididymis of the bull






41. Depository for semen during insemination. where urine leaves the body






42. Duct through penis that carries sperm and urine






43. Failure to have one testis (gonad) to descend






44. 16-20 hours






45. Why does estrus happen before ovulation?






46. 30 hours after estrus begins






47. 114 days






48. Urinary calculi.






49. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.






50. 147 days